First Report of the Repellency of 2-Tridecanone in Ticks

ticks;repellents;aliphatic ketones;glandular trichomes;natural repellent

Kimps, Nicholas Wade ; Fred P. Hain, Committee Member,Charles S. Apperson, Committee Co-Chair,R. Michael Roe, Committee Co-Chair,Kimps, Nicholas Wade ; Fred P. Hain ; Committee Member ; Charles S. Apperson ; Committee Co-Chair ; R. Michael Roe ; Committee Co-Chair

University:North Carolina State University

关键词: ticks;    repellents;    aliphatic ketones;    glandular trichomes;    natural repellent;   

Others  :  https://repository.lib.ncsu.edu/bitstream/handle/1840.16/6298/etd.pdf?sequence=1&isAllowed=y

美国|英语

来源: null

【 摘 要 】

The chemicals 2-tridecanone and 2-undecanone are both found naturally in the trichomes of wild tomato plants and are important in plant resistance to herbivory.2-Undecanone recently was shown to be an effective tick repellent and is the active ingredient in the commercially available arthropod repellent, BioUD®®.The goal of this study was to examine, for the first time the, tick repellency of 2-tridecanone.Two-choice bioassays were conducted between 8% 2-tridecanone versus the repellent carrier, absolute ethanol and compared to similar choice studies with 8% 2-undecanone versus absolute ethanol. Unfed, host-seeking adult (mixed sexes) Amblyomma americanum and Dermacentor variabilis were used to evaluate repellency and time to repellent failure at room temperature on two different substrates.In filter paper assays, 2-Tridecanone was >70% repellent to A. americanum and D. variabilis for 12 and 15 h, respectively.In contrast, 2-undecanone was >70% repellent to A. americanum and D. variabilis for only 2 h.In two choice assays on cheesecloth, 2-tridecanone was 85% repellent to A.americanum for 6 h.2-tridecanone provided repellency significantly longer than 2-undecanone.The potential use of 2-tridecanone as a tick repellent is discussed.